Core for trimming moldings



Feb. 22, 1938. w, MaCL'EOD 2,109,428

CORE FOR TRIMMING MOLDINGSA Filed May 17, 1955 Patented Feb. 22, 1938comi Foa TRIMMING MoLDINGs' William ohn MacLeod, Lochmoor, Grosse`Pointe Village, Mich., assigner toack'stay Welt Com-` pany, Union City,Ind., a corporation of Indiana j e vapplication; May 17, 1935, serial`No. 22,193

s' claims. I (olf-154mm@ My invention relates to trimming moldings `ofthe type extensively used in the furniture and automobile bodyindustries, `and is directed particularly to providing a novel,efficient and inexpensive core or filler element.

The trimming moldings of the type to which my invention relates compriseessentially 'a strip l of fabric folded around one or more fillerk orcore elements which give body and thickness to the structure. Themolding generally comprises a welt, frequently of the blind nail type,which is tacked or otherwise applied over the meeting edges or oneedgeof an area of covering fabric, such as an upholstered seat coveringmaterial, or other automobile body fabric. of such trimmings it isdesirable that the welt `or molding have an appreciable body orthickness, to enhance the ornamental effect, and to render the trimmingmore durable and prevent it being readily disengaged from appliedposition.

Thickness and body are `attained by incorpo-` rating in the foldedfabric one or more cores or fillers, and it is to this element ofthe'trimming molding that my invention relates. Heretofore variousdifferent mediums have been employed in fabricating trimming cores,including strips of leather, cords and roving of cotton, jute, andpaper, and molded or extruded rubber.v The structure provided by mypresent invention is superior to those heretofore known in that it isless expensive, more easily made, more readily formed toany desiredshape, and because it possesses a superior compactness, firmness,resilience, and nexibility. y

Much difculty has heretofore been experi.- enced with deterioration ofwelts andanalogous trimming moldings, particularly the cores andllersxthereof, on exposure to weather. Such exposure commonly results inrotting of the material and eventual breaking down of the wholestructure. My present invention provides a core or filler which isthoroughly and permanently Waterproof and which consequently provides adurable andunchangeable foundation for permanently sustaining thecovering and other trimming molding elements. Yl

An important quality of any trimming molding element is its capacity tobe disposed about curves of short radius without objectionable puckeringand buckling and Without imparting kinks and similar deformations to themolding as a whole. My present core possesses these smooth bendingproperties to a high degree, and welts which include it are capable ofbeing disposed about short curves in the flat plane of the welt withoutappreciable puckering, buckling or kinking.

A further advantage of the present invention is the capacity of cores orfillers made according to it to be built up to any thickness desired,between any limits usual in trimming molding prac- In certain typestice. As will beseen hereinafter, the structure comprises a filler orcore *madeof fabric plies, and a body of any desired-'thickness isproduced by using'thejmaterial in anyappropriate number of plies.` l y vy Y With the foregoing-andother objects and advantages in view, myinvention'comprises a construction of which a preferred form4 is shownon the accompanying drawing' and also explained hereinafter. Inthedrawing,

'Y Figure 1 shows a sheet of material, afportion of' v the sheet beingshownk as treatedinaccordance with a preliminary step in themanufacturefof thecore; j j L y Fig, 2 is a perspective View of thetreated sheet with oneof its margins folded o ver in conformity with anintermediate step in themanufacture of the core; '1 Fig. 3 is a crosssectional view of a completed core; v

Fig. 4 is a perspective view thereof;

Fig. 5 is a cross sectional view of a modified, f

completed core;l and y Fig.` 6 is a similar view ofl afurther modified,

Ycompleted core.

' Broadly, the invention comprises a core of the class described whichis formed of a strip of coarse fabric, such as 'jute burlap impregnated`with an adhesive composition, folded over o n itself to provide two ormore plies, enough to give the resulting body the thickness desired.4Thus.

lfor example, the core may comprise such a strip, `having both of itsmarginal portions folded. over the central zone of the strip andmoderately compacted together. so that 4the resulting structure isofthree-ply thickness throughout mostv of its width, as shown in Figs. 3and 4. i After the adhesive has begun to set the completed corecomprises a substantially unitary body. the several plies and theplurality of threadsjbeing' rmly .f

bonded together. User of a preferred type of adhesive compositionresults in thesurface of vthe completed core remaining "comparativelytacky or being frictioned, fora considerable period of time, whereby theconventional trim- 'ming moldingr covering material is adapted firmly tobond with the core so that relative sliding movement of thev core andcovering is prevented. I form my novel core or filler by providing juteburlap or .analogous coarse fabric in a strip of indefinite length andapproximately, in the case of the k,example chosen for illustration inFigs. 2,13, and 4,three times the widthdesired for the completedfoore.`The strip, shown at I in l, is coated and preferablythoroughlyimpregnated with an adhesive filler composition as indicated at 2 inFig. 1.

While the adhesive composition is still tacky and comparatively nuid oneside margin 3 of the of the core.

`several pliesin the.

abovecost very little, can be manufacture into any of .the

strip is folded over onto the central zone of the strip, and thereafterthe other side margin 4 is folded verontdthe side margin 3. The Width ofeach folded-over side margin '"is'so proportioned that the extreme edgeof the strip rnaterial does not extend quite to the extreme edge 3 and4, that A y two plies in thickness, While thegreatenpart of the centralarea of the corlifs'` offthrenply thickness. material of the core isreadilyycompacted-and formed to provide a body which is substantiallyhalf-'round or semi-cylindrical, i. e., substantially thinner at ,itsedges then-initscenter The filial stepin the manufacture of the rcore isa ,compacting operationg,by; which ,the impregnated fibers, of the corematerial are`..consolidated and are permanently held in compactedcondition by the settingof 'theadhesil/e.. i

The adhesive which Ixprefer .tofuse a latex compound, but obviouslyanyother uid Vorvisf cous medium 4having.,.tlie desiredT properties. may besubstituted. vj In Figs. 5 and 6 I show modifications of the specificform of. corefjust explained. y In Q Fig. V5 the structureis relativelythin'gbeingpf two-ply thickness, and is thetype-of element generallyused as a ill'er strip in Welt manufacturing. In Fig. 6 the structure iscomparatively thick, and is adapted to serve Vas the core .of amolding'oras the ller of the largev bead ofa welt.` Itwill be appreciated thatthese two modifications, and

of course othersswhielrgit s. ,not, necessary to.

describe herein, embody the broad 'principles of the inventionasexplaine'd hereinabove.V`

It willbe noted thatin. BLIshow certain of the interior plies,designatedby ther/.reference numeral 5, as beingYforme/dof*separatestrips of material. This modification is of course`Within the broad spirit Aof theinvention-- yInother words,

I have' fdund thattheadhesive which I` prefer to use is capable ofbonding ,together gindepend.- ent, separate -strips of ,material vtomake up--of ,them .a solid, effectively integral body.. .I am thus "ableto use the otherwise wasted selvageledgesof Various piece goods tornakecores Vor 'fillers according .tothe principles of thisinvention.. I

show separate strips forming certain of thezplies in Fig. .6 merelytoillustrate this featuref.,ofthe invention.. Qbviouslly .the ,plies inFig.. 6 might equally wellA beconstitutedby the various -folds of asingle Vpiece of'm'aterial; and vsimilarly the other guresmight bemadeof separatestripsof material. .1 y

` I have found -that .coresmade as explained formed during their severalconventional core shapes now use, and-.can be associated with a trimmingmolding coveringstrip without requiring the use of V anyadditionaladhe'sive. 'Ifhat is to` say, even after lapse QfacOnsiderableperiod Vof time, my npvel 1core. or filler maybe associated with 'any'.usual type of trimming moldin'g covering material, and will stickthereto by `virtue of .theitacky or frictione'dcharacterofthecorefsurface. d. .A

VvThe foregoing explanation has been;blywayl of exempliiicatio'n and notlimitation, showingcertain typesof o(instructionI and specifying'certain It results, as oleaijiyshown in Rigs?. the extreme edges of thecore are By this construction :the` 'impregnated -pended claims,theyare-to be deemed mathe 'SeveralY Ytive sliding movement.

bei deposite-d from 1a U5.' A core vfor tr Mvantages explained herein.It is to be unders'to'od that the broad principles of the inventionareofwide application and that other and fur- 4ther embodiments arecontemplated and, to the Aextentlthat lsuch modifications embody theprin- ('iip'les'v ofthe invention as pointed out by the ap- Within` thescope and purview thereof. I claim:

1; A core for trimming moldings and the like comprisinga relatively.thick` strip of coarse teX- Ytile materialI such as burlapimpregnatedwith an adhesive composition having each of Yits oppe sitemargins foldedov'er the'cen'tral zone of the strip to provide vthreeplies,` 'the several plies be'- in g, .con solida te d vinto 'agunitarybodyby the ad# hesive, Aand the adhesive lcomposition penetratf A pliesand rcoating Vtheouter sur- 1 2. A corejfor.trimmingfmoldings andthelike comprising afrelativelythick strip of relatively `'o r3 zra.r`se ,lopenmesh textile material impregnated with anr adhesive filler andhaving oneof its margins folded .overontotheicentral zone of the stripand thefotherlnarginfolded over 'onte theliirst margin torprovideathree-ply structure, the sevf` erai plies :being consoliplated into aunitary body by the adhesive filler, and said llerpenetrating ltheseveral plies and toatirigthe .outer surfaces of the body.Atrimmiiigfildings and the like V 'i i i'Helativelyfthick strip ofrelatively coarse?A opfer; fesh teXtilelgmateriall impregnated withadhesivefflller vand .having one of Lits marginsIQld'edoVer ontothecentral zone ofthe stripand the other marg'n"fol`ded over onto Athe Yseveral plies being consolidated .by the ller into of the body toform africtionsurfaceadapted tojenga'ge conventional ,trimming molding cjov-4eri'ng,material and -hold the "same: against rela.-

4. A core as clairnedin elaimiingwhich .the textile material is Ab urleX. vmoldings and the like comprising a relatively thick strip ofrelatively coarse, open mesh textile material impregnated with ankadhesive filler and having oneof its margins folded over onto thecentral zone of the strip and `the other marginfolded over onto the rstmargin to provide a three-ply structure, the several vplies be'in'gconsolidated kinto a unitary body by the adhesive 'llerfand thefree edges of said marginal portions 'being disposed inwardly of ytheedges of the structure whereby the body three'hply thiknessalon'gitscentral Zonet'.

6.a 'core 'as Vclaimed in claim `5 in which' theround'lvsemi-cylindricailshape. i Y l a Y WILMAM JQHN '.MACLEODa ap andthe adhesive is rubis ofjtwo-'ply'thickne'ss along its v edges and of

